﻿<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>随意改变大小的文本框</title>
    <script type="text/javascript" language="JavaScript">


    </script>
    
</head>
<body>

<div contenteditable="true">
    <input type='text'><button>改变这个本框试验试验</button>
</div>

</body>
</html>